Choose a different device or app
Windows
New Outlook on a Windows computer
Follow this guide if you use the New Outlook app on your Windows computer.
These steps are for New Outlook. Using Classic Outlook? Use the Classic Outlook guide.
Step by step
Follow these steps
Open Outlook’s settings
Open Outlook. At the top, click View, then View settings.
Open the account list
Click Accounts, then Your accounts.
Add your business email
Click Add Account. Type your complete business email address, then click Continue.
Choose IMAP if asked
If Outlook asks which kind of account to add, choose IMAP. This is the option to use for the email account we provided.
Show the extra boxes if needed
If Outlook cannot finish automatically, choose Advanced Setup if offered. Select IMAP, then turn on Show more to see the connection settings.
Fill in the incoming-mail boxes
In IMAP incoming server, enter fusion.mxrouting.net. Set Port to 993 and Secure connection type to SSL/TLS.
fusion.mxrouting.net993SSL/TLSFill in the outgoing-mail boxes
In SMTP outgoing server, enter that same mail server name, fusion.mxrouting.net. Set Port to 465 and Secure connection type to SSL/TLS.
fusion.mxrouting.net465SSL/TLSFill in both email logins
For both IMAP and SMTP, enter your full email address as the username and your email password as the password. Both sections need these details.
Finish adding the account
Click Continue. If Outlook asks to keep a copy of your email in Microsoft’s cloud, read the prompt and continue if you agree. Click Done when setup finishes.
Make sure you can send and receive
Send a short email to another email account you can open. Open that account and reply. Check that the reply arrives in your new business inbox.
Email settings to copy
Use these exact details
Keep this open while you fill in your email app. Select any value yourself if copying does not work.
fusion.mxrouting.net993SSL/TLS465https://fusion.mxrouting.net/roundcube/- Username
- Your complete email address
- Password
- Your email password
- Outgoing sign-in
- Required
Do not enter or save a password on this guide website.
Helpful notes
Keep in mind
Do not use the Classic Outlook menus
The File → Advanced options procedure belongs to Classic Outlook. Use the guide that matches your application.
Microsoft cloud synchronization
New Outlook may request permission to synchronize your IMAP account through Microsoft’s cloud. If you prefer a different connection model, use Thunderbird or Apple Mail.
Your build looks different
New Outlook changes through rolling updates. If provider selection or server fields are missing, contact us with the app version and a screenshot that hides your password.
About this guide
Version: New Outlook · current Microsoft setup flow
Documentation checked: September 18, 2026
Method: Official documentation reviewed
Sources